Allow multiple -e in %pyproject_buildrequires

macros.pyproject

@@ -81,7 +81,7 @@ fi
 
 
 %pyproject_buildrequires(rxte:) %{expand:\\\
-%{-e:%{expand:%global toxenv %{-e*}}}
+%{-e:%{expand:%global toxenv %(%{__python3} -s %{_rpmconfigdir}/redhat/pyproject_construct_toxenv.py %{?**})}}
 echo 'python%{python3_pkgversion}-devel'
 echo 'python%{python3_pkgversion}dist(pip) >= 19'
 echo 'python%{python3_pkgversion}dist(packaging)'

pyproject-rpm-macros.spec

@@ -6,7 +6,7 @@ License:        MIT
 
 # Keep the version at zero and increment only release
 Version:        0
-Release:        31%{?dist}
+Release:        32%{?dist}
 
 # Macro files
 Source001:      macros.pyproject
@@ -16,6 +16,7 @@ Source101:      pyproject_buildrequires.py
 Source102:      pyproject_save_files.py
 Source103:      pyproject_convert.py
 Source104:      pyproject_preprocess_record.py
+Source105:      pyproject_construct_toxenv.py
 
 # Tests
 Source201:      test_pyproject_buildrequires.py
@@ -75,6 +76,7 @@ install -m 644 pyproject_buildrequires.py %{buildroot}%{_rpmconfigdir}/redhat/
 install -m 644 pyproject_convert.py %{buildroot}%{_rpmconfigdir}/redhat/
 install -m 644 pyproject_save_files.py  %{buildroot}%{_rpmconfigdir}/redhat/
 install -m 644 pyproject_preprocess_record.py %{buildroot}%{_rpmconfigdir}/redhat/
+install -m 644 pyproject_construct_toxenv.py %{buildroot}%{_rpmconfigdir}/redhat/
 
 %if %{with tests}
 %check
@@ -89,11 +91,16 @@ export HOSTNAME="rpmbuild"  # to speedup tox in network-less mock, see rhbz#1856
 %{_rpmconfigdir}/redhat/pyproject_convert.py
 %{_rpmconfigdir}/redhat/pyproject_save_files.py
 %{_rpmconfigdir}/redhat/pyproject_preprocess_record.py
+%{_rpmconfigdir}/redhat/pyproject_construct_toxenv.py
 
 %doc README.md
 %license LICENSE
 
 %changelog
+* Tue Nov 03 2020 Miro Hrončok <mhroncok@redhat.com> - 0-32
+- Allow multiple -e in %%pyproject_buildrequires
+- Fixes: rhbz#1886509
+
 * Mon Oct 05 2020 Miro Hrončok <mhroncok@redhat.com> - 0-31
 - Support PEP 517 list based backend-path
 

pyproject_buildrequires.py

@@ -244,6 +244,7 @@ def parse_tox_requires_lines(lines):
 
 
 def generate_tox_requirements(toxenv, requirements):
+    toxenv = ','.join(toxenv)
     requirements.add('tox-current-env >= 0.0.3', source='tox itself')
     requirements.check(source='tox itself')
     with tempfile.NamedTemporaryFile('r') as deps, tempfile.NamedTemporaryFile('r') as extras:
@@ -297,7 +298,7 @@ def generate_requires(
     try:
         backend = get_backend(requirements)
         generate_build_requirements(backend, requirements)
-        if toxenv is not None:
+        if toxenv:
             include_runtime = True
             generate_tox_requirements(toxenv, requirements)
         if include_runtime:
@@ -315,8 +316,8 @@ def main(argv):
         help='Generate run-time requirements',
     )
     parser.add_argument(
-        '-e', '--toxenv', metavar='TOXENVS', default=None,
+        '-e', '--toxenv', metavar='TOXENVS', action='append',
-        help=('specify tox environments'
+        help=('specify tox environments (comma separated and/or repeated)'
               '(implies --tox)'),
     )
     parser.add_argument(
@@ -346,8 +347,9 @@ def main(argv):
 
     if args.tox:
         args.runtime = True
-        args.toxenv = (args.toxenv or os.getenv('RPM_TOXENV') or
+        if not args.toxenv:
-                       f'py{sys.version_info.major}{sys.version_info.minor}')
+            _default = f'py{sys.version_info.major}{sys.version_info.minor}'
+            args.toxenv = [os.getenv('RPM_TOXENV', _default)]
 
     if args.extras:
         args.runtime = True

pyproject_buildrequires_testcases.yaml

@@ -294,7 +294,8 @@ Tox dependencies:
     wheel: 1
     tox: 3.5.3
     tox-current-env: 0.0.3
-  toxenv: py3
+  toxenv:
+    - py3
   setup.py: |
     from setuptools import setup
     setup(
@@ -327,7 +328,8 @@ Tox extras:
     wheel: 1
     tox: 3.5.3
     tox-current-env: 0.0.3
-  toxenv: py3
+  toxenv:
+    - py3
   setup.py: |
     from setuptools import setup
     setup(

pyproject_construct_toxenv.py

@@ -0,0 +1,15 @@
+import argparse
+import sys
+
+
+def main(argv):
+    parser = argparse.ArgumentParser(
+        description='Parse -e arguments instead of RPM getopt.'
+    )
+    parser.add_argument('-e', '--toxenv', action='append')
+    args, _ = parser.parse_known_args(argv)
+    return ','.join(args.toxenv)
+
+
+if __name__ == '__main__':
+    print(main(sys.argv[1:]))

tests/python-setuptools_scm.spec

@@ -9,6 +9,8 @@ Source0:        %{pypi_source setuptools_scm}
 BuildArch:      noarch
 BuildRequires:  python3-devel
 BuildRequires:  pyproject-rpm-macros
+BuildRequires:  /usr/bin/git
+BuildRequires:  /usr/bin/hg
 
 %description
 Here we test that %%pyproject_extras_subpkg works and generates
@@ -16,6 +18,10 @@ setuptools_scm[toml] extra subpackage.
 
 Note that it only works on Fedora 33+.
 
+We also check passing multiple -e flags to %%pyproject_buildrequires.
+The tox environments also have a dependency on an extra ("toml").
+
+
 %package -n python3-setuptools_scm
 Summary:        %{summary}
 
@@ -28,9 +34,22 @@ Summary:        %{summary}
 %prep
 %autosetup -p1 -n setuptools_scm-%{version}
 
+# there is a mistake in the flake8 environment configuration
+# https://github.com/pypa/setuptools_scm/pull/444
+# https://github.com/pypa/setuptools_scm/pull/489
+sed -i -e 's@flake8 setuptools_scm/@flake8 src/setuptools_scm/@' -e 's@--exclude=setuptools_scm/@--exclude=src/setuptools_scm/@' tox.ini
+
 
 %generate_buildrequires
+%if 0%{?fedora} >= 33 || 0%{?rhel} >= 9
+# Note that you should not run flake8-like linters in Fedora spec files,
+# here we do it solely to check the *ability* to use multiple toxenvs.
+%pyproject_buildrequires -e %{default_toxenv}-test -e flake8
+%else
+# older Fedoras don't have the required runtime dependencies, so we don't test it there
 %pyproject_buildrequires
+%endif
+
 
 
 %build
@@ -43,6 +62,16 @@ Summary:        %{summary}
 
 
 %check
+%if 0%{?fedora} >= 33 || 0%{?rhel} >= 9
+# This tox should run all the toxenvs specified via -e in %%pyproject_buildrequires
+# We only run some of the tests (running all of them requires network connection and is slow)
+%tox -- -- -k test_version | tee toxlog
+
+# Internal check for our macros: Assert both toxenvs were executed.
+grep -F 'py%{python3_version_nodots}-test: commands succeeded' toxlog
+grep -F 'flake8: commands succeeded' toxlog
+%endif
+
 # Internal check for our macros
 # making sure that %%{pyproject_ghost_distinfo} has the right content
 test -f %{pyproject_ghost_distinfo}